sorry dont no what just happened ignore that lost post but i would SLOWLY move to 18/6 then 12/12 for buding stage always 12/12 thats the rule but if ur plants are growing goood on the 14/10 cycle just leave them there but if you wanna change then you really have to go slow

The 12/12 cycle will induce flowering, in theory any less than 12hrs of darkness will keep the plants vegging, but the most common cycle is 18/6, and a lot of growers start on 24/0 for the first week or two.
When you change the light cycle, just do it in one night, I've never noticed any ill effects doing that compared to gradually adjusting the photoperiod.